CVE-2018-14665

high-risk
Published 2018-10-25

A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges.

Do I need to act?

~
8.9% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
!
8 public exploits available
45938, 45832, 45908 and 5 more
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.6/10 Medium
PHYSICAL / LOW complexity

Affected Products (11)

Affected Vendors

Debian Redhat X.Org Canonical

References (40)

http://packetstormsecurity.com/files/154942/Xorg-X11-Server-SUID-modulepath-Priv...
http://packetstormsecurity.com/files/155276/Xorg-X11-Server-Local-Privilege-Esca...
Third Party Advisory http://www.securityfocus.com/bid/105741
Third Party Advisory http://www.securitytracker.com/id/1041948
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3410
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14665
Patch https://gitlab.freedesktop.org/xorg/xserver/commit/50c0cf885a6e91c0ea71fb49fa8f1...
Patch https://gitlab.freedesktop.org/xorg/xserver/commit/8a59e3b7dbb30532a7c3769c555e0...
Mitigation https://lists.x.org/archives/xorg-announce/2018-October/002927.html
Third Party Advisory https://security.gentoo.org/glsa/201810-09
Third Party Advisory https://usn.ubuntu.com/3802-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4328
Exploit https://www.exploit-db.com/exploits/45697/
Exploit https://www.exploit-db.com/exploits/45742/
Exploit https://www.exploit-db.com/exploits/45832/
Exploit https://www.exploit-db.com/exploits/45908/
Exploit https://www.exploit-db.com/exploits/45922/
Exploit https://www.exploit-db.com/exploits/45938/
Exploit https://www.exploit-db.com/exploits/46142/
Exploit https://www.securepatterns.com/2018/10/cve-2018-14665-xorg-x-server.html
and 20 more references
54
/ 100
high-risk
Severity 21/34 · High
Exploitability 17/34 · Moderate
Exposure 16/34 · Moderate